asigne instancing verts
I finally find it out. For all that have the same question. Here is there answer. You have to asigne all modifiers, and after that with ctrl a all scales, rotation etc. After that, you first select the origin of the chain aromr, than the base. With ctrl you get this picture

Then select make instance real or press M
Finally you got all the chain links seperate. Now select all chain links and with ctrl j convert it to one mesh.

Now you can delete the base.